Dodge Colt/Challenger/Conquest/Vista 1971-1989 Repair Guide

General Information


The computer regulated, Electronic Fuel Injection (EFI) system provides a precise air/fuel mixture ratio for all driving conditions. The fuel injection system is controlled by the Powertrain Control Module (PCM).

The fuel system consists of the fuel tank, fuel pump, fuel filter, throttle body, fuel injector, fuel tubes and vacuum tubes. The fuel system is kept under a constant pressure of 14.5 psi (100 kPa) for 1984-89. Make sure to relieve the fuel system pressure before servicing any EFI component.